Preheat oven to 375 degrees. Slice through the Hawaiian rolls horizontally and place the bottom of the rolls in a 13×9 baking dish.

In a medium pan, cook chorizo over medium heat for about 8-9 minutes. Remove from the pan and drain off excess oil.

In the same pan, cook the onion until translucent, about 3 minutes. Then cook the hash browns until golden, about 3 minutes on each side. Remove from pan.

Scramble eggs in the same pan until done, about 3 minutes.

Assemble all ingredients as listed. Place the top of the rolls on top and brush them with melted butter.

Bake in the oven for 15 minutes. Let cool for 5 minutes before serving.